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Finding the Fourth Proportional to 404,639.53, 558,402.59 and 223,351.51

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Solution

The fourth proportional to 404,639.53, 558,402.59 and 223,351.51 is: 308,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,639.53 : 558,402.59 = 223,351.51 : x
  2. Step 2: Convert to fraction form
    404,639.53/558,402.59 = 223,351.51/x
  3. Step 3: Cross multiply
    404,639.53x = 558,402.59 × 223,351.51
  4. Step 4: Simplify right side
    404,639.53x = 124,720,060,617.44
  5. Step 5: Solve for x
    x = 124,720,060,617.44/404,639.53
  6. Step 6: Final answer
    x = 308,225.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.